Could you explain this problem on a fourth grade level. philip is making a poster that is 36 inches long and 24 inches wide, he cuts out a rectangle that is 5 inches long and 12 inches wide from the poster how much of the poster remains?

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?